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The word "difference" between impermeable geotechnical membrane and impermeable geotechnical cloth in geotechnical membrane

Number of hits:852018-12-01 00:00:00

At present, housing construction, regardless of roof, wall, toilet, basement will have different degrees of leakage phenomenon, with flat roof leakage problems, especially in the rainy season with heavy rain and heavy rain, leakage is even more obvious. The composite geotechnical membrane can solve this problem very well. The geotechnical membrane in the composite geotechnical membrane has good anti-seepage and water-proof high tensile strength and adaptability to deformation, and the geotechnical cloth on the composite geotechnical membrane can not only play the role of drainage exhaust and withstand external forces. Damage effect, It can also improve the anti-skid ability of the contact interface. As a composite geotechnical film of roof waterproof layer, the working conditions are better because of the small water pressure it bears.
The waterproof general structure of the roof is to first lay a layer of cement mortar on the roof panel to find a flat layer. The upper layer is covered with a composite geotechnical membrane for the waterproof layer and the thermal insulation layer, and finally the fine stone concrete rigid waterproof layer.
The impermeable geotechnical membrane is a kind of polymer chemical flexible material with small specific gravity, strong extensibility, high ability to adapt to deformation, corrosion resistance, low temperature resistance, and good cold resistance. Its main mechanism is to use the impermeability of the plastic film to block the leakage channel of the earth dam, and to withstand the water pressure and adapt to the deformation of the dam body with its greater tensile strength and extension rate. The impermeable earth cloth is made of plastic film as impermeable material, and the non-woven cloth is combined with the impermeable material. Its impermeable property mainly depends on the impermeable properties of the plastic film.
At present, the plastic films used in impermeable geotechnical film at home and abroad mainly include polyvinyl chloride(PVC) and polyethylene(PE), which are polymer chemical flexible materials with small specific gravity, strong elongation, and high ability to adapt to deformation. Corrosion resistance, low temperature resistance, good cold resistance. Its main mechanism is to use the impermeability of the plastic film to block the leakage channel of the earth dam, and to withstand the water pressure and adapt to the deformation of the dam body with its greater tensile strength and extension rate.
The non-woven fabric is also a kind of polymer short fiber chemical material. It has high tensile strength and elongation through acupuncture or hot adhesion. After it is combined with plastic film, it not only increases the tensile strength and anti-puncture ability of the plastic film, but also Because the surface of the non-woven fabric is rough, The friction coefficient of the contact surface is increased, which is beneficial to the stability of the composite geotechnical film and protective layer. At the same time, they have good corrosion resistance to bacteria and chemistry, and are not afraid of the erosion of acids, bases, and salts.
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